Kurumu Kurono

Kurumu is a friend to Ulrich and his crew at G-Academy. She likes to seduce Ulrich, Toad, Herbert, Jake and Patrick a lot. Jaina got jealous when she was trying to take Ulrich. She likes Ulrich every time he is around and had a crush on him in his class.

Adrien Agreste/Cat Noir

Adrien Agreste is a good friend with Ulrich and his crew. He joins their crazy adventures as Cat Noir when villains attack Academy City. He is the son of Gabriel Agreste, who is secretely a supervillain named Hawkmoth. He and Marinette are helped by Ulrich to confess their feelings towards each other. Thanks to that, they started dating.

Ayla Cesarie/Rena Rouge

Ayla Cesarie is Marinette's friend and likes to have adventures with Ulrich and his crew during the villains attack and helps them as Rena Rouge. She fell in love for him since then, but Jaina got to him first. However she was happy when she heard that Marinette and Adrien were finally dating. Her crush was directed towards Nino Lahiffe, and now they are dating as well. 

Marinette Dupain Cheng/Ladybug

Marinette was helped by Ulrich to confess her feelings for Adrien, and once they confessed to each other, they started dating like a couple. She is also a friend to Ulrich and his crew, even helping them as Ladybug. 

Tsukune Aono/Kamen Rider Geiz

Tsukune is a friend to Ulrich and his crew and a boyfriend of Kurumu, Moka, Yukari and Mizore. He always likes to hang out with Ulrich, Herbert, Toad, Patrick and Jake a lot when they go to play arcades and others. Even though he and his girlfriends liked to laugh at Patrick for flirting or hitting on Noire, they also comfort him and Tsukune tells him to never give up until he finds his true love. He holds a secret with him that only his girlfriends and true friends know. He is the current Kamen Rider Geiz.

Noire/Black Heart

Noire is the sister of Uni and Toad's former crush. She has a tsundere behavior despite ellying with Ulrich and his team against evil aliens, Avengers, villains and Void Knight. She lost her chance with Toad, but swore to find her true love.

Nepgear/Purple Sister

Nepgear is the sister of Neptune and an ally of Ulrich and his team. He also had a crush on Patrick Solo, and always got jealous when he flirted with Noire. But once she confesses to Patrick, she became his girlfriend. But she holds a big secret. She is bisexual and besides Patrick, she has two girlfriends.

Naofumi Iwatani

He is great friend of Ulrich and his team, and guards a big grudge against Malty, Motoyasu and Keyarga.

Raphtalia

She is the girlfriend of Naofumi Iwatani, and became friends with Ulrich and his team once they helped Naofumi to save her from Keyarga.